Parental Psychological Control, Parent-Related Loneliness, Depressive Symptoms, and Regulatory Emotional Self-Efficacy: A Moderated Serial Mediation Model of Nonsuicidal Self-Injury.

Objective Adolescent nonsuicidal self-injury (NSSI) has become an alarming public health concern. Parental psychological control has been identified as a risk factor for NSSI in some western samples. However, the relationship between parental psychological control and NSSI remains unclear among Chinese adolescents. Furthermore, little is known about how parental psychological control affects NSSI. This study aims to examine a moderated serial mediation model of NSSI, revealing the mediating and moderating mechanisms underlying the relationship between parental psychological control and NSSI. Method A total of 953 Chinese secondary school students (47.7% females, mean age = 12.53 years, SD = 0.63) completed questionnaires of NSSI, parental psychological control, parent-related loneliness, depressive symptoms, and regulatory emotional self-efficacy. Results Parental psychological control was positively associated with NSSI. This association was mediated by parent-related loneliness and depressive symptoms independently. Also, it was serially mediated by parent-related loneliness and depressive symptoms. In addition, regulatory emotional self-efficacy moderated the indirect relationships between parental psychological control and NSSI. Conclusions Findings of this study shed light on how NSSI is affected by parental psychological control, parent-related loneliness, depressive symptoms, and regulatory emotional self-efficacy, and provide insights into the prevention and intervention measures targeting adolescent NSSI.HIGHLIGHTSParental psychological control was positively associated with NSSI.Parent-related loneliness and depressive symptoms independently and serially mediated the association between parental psychological control and NSSI.Regulatory emotional self-efficacy moderated the indirect relationships between parental psychological control and NSSI.